Snow-scraper.



No. 767,725. PATENTED AUG. 16, 1904.

I. WONNAGOTT.

SNOW SURAPER.

APPLICATION FILED APR. 22, 1904.

N0 MODEL. 4 SHEETS-SHBET l.

WITNESSES: [NVENTOR M 'WTZZZf No. 767,725. PATENTED AUG. 16, 1904.

I. WONNAGOTT.

SNOW SGRAPER.

APPLICATION EILED APR. 22, 1904.

N0 MODEL. 4 SHEETS-SHEET 2 W1 TNESSES: [NI/ENTOR No. 767,725. PATENTEDAUG. 16, 1904.. I. WONNAGOTT.

SNOW SORAPER.

APPLIGATION FILED APR. 22, 1904.

NO MODEL. 4 SHEETS-*SHEET 8.

WITNESSES: gaaw/ow, 4 W

PATENTED AUG. 16, 1904.

V I. WONNAOOTT. snow SGRAPER.

APPLICATION FILED APR. 22, 1904.

4 SHEETS-BHEET 4.

H0 KODEL.

Attorney/4 INVENTOR WITNESSES.-

being the steering-wheels.

UNITED STATES Patented August 16, 1904.

PATENT OFFICE.

SNQW-SCRAPER.

SPECIFICATION forming part of Letters Patent No. 767,? 25, dated August16, 1904.

Application filed April 22, 1904. Serial No. 204,416- (No model.)

To all whom it may concern:

Be it known that I, ISRAEL VVoNNAoo'rtr, a citizen of the United States,residing at W aymart, in the county of Wayne and State of Pennsylvania,have invented new and useful Improvements in Snow-Scrapers, of which thefollowing is a specification.

My invention relates to a machine for removing snow from frozen riversand lakes previous to cutting the ice thereon; and it consists incertain novel features of construction hereinafter described, andpointed out in the claims.

In the accompanying drawings, Figure 1 is a side elevation of themachine. Fig. 2 is a top plan view thereof. Fig. 3 is a bottom planview. Fig. 4 is avertical section on the line 4 1 of Fig. 3, showing indetail the hanger which supports the axle of the traction-wheels. Fig. 5is an elevation of the front part of the machine, showing the scraper inoperative completion. Fig. 6 is a like view showing the position of thescraper when it is dumped. Fig. 7 is an enlarged detail view of one ofthe wheel-calks.

Referring specifically to the drawings, 10 denotes the frame of themachine, which is mounted'on wheels, the rear ones, 11, being thetraction-wheels and those in front at 12 Both pairs of wheels have ontheir tires calks or studs 13 to increase the traction. The calks have athreaded stem 13 to screw into the tires, and they are arranged instaggering rows, as shown. A squared shoulder 13 is also provided toafford a hold for a wrench, whereby the calks can be readily removed tobe replaced when worn.

The frame of the machine supports the engine 14c, boiler 15, and therunning-gear, to be described. The axle 16 of the tractionwheels is intwo parts,'16 and 16 respectively, both being supported at their outerends in hangers 17 under the frame 10. Their inner ends are supported ina hanger 18 on the frame. The hangers 17 have a verticallymovable box17. A strong spiral spring 17 between the box and top of thehanger-frame 'takes up all jar and vibration at the rear end of themachine, on which the boiler is supported.

The driving-shaft is indicated at 19, and on each side thereof arecounter-shafts 20 and 21, respectively, said shafts being supported insuitable bearings 22 on the frame 10. Each counter-shaft has afriction-clutch 23 of any suitable construction, the loose member ofwhich is formed with a pinion 23 in mesh with a spur-wheel 23 on thedriving-shaft. The counter-shaft 20 has sprockets 20 and 20 connected tosprockets 16 and 16 respectively, on the axle 16, a sprocket beingprovided for each member of said axle. The sprocket-2O on thecounter-shaft 20 has a clutch 20, whereby that side of the axle 16 canbe thrown out of gear to prevent binding of the wheels when turning. Thecounter-shaft 21 has sprockets 21, connected with the hoistingapparatus,'to be hereinafter described, and the driving-shaft is alsoprovided with a fly-wheel 19 The steering-wheels 12 run loosely on shortaxles 12*, which are pivoted at 12 in a supporting-beam 12 under theframe 10, the outer ends of the beam being forked to receive the axles.

At 12 at the middle of the beam 12, a horizontally-extending lever 25 ispivoted, which is connected by rods 25 to stems 25", extending forwardlyfrom the axles. When the lever is vibrated, the steering-wheels will beshifted and by reason of the connections just described they will movein parallelism. The lever 25 is vibrated by a vertical shaft 26, havingat its lower end an offset extension or stem 26, which enters a slot 26in the front end of the lever 25. Rotation of the shaft 26 will causethe lever to vibrate in a horizontal plane, whereby the wheels are swungin either direction and the machine is steered. The shaft 26 issupported in a suitable bearing 27 in front of the machine and has atits top end a pinion 27, which is in mesh with a pinion 27 b on a shortshaft also supported in the bearing 27 and whichcarries a handle 27 Tothe front end of the machine a frame 28 is attached, which carries ascraper 29. This I frame has runners 28 and will be pushed the ice bythe machine.

along over the ice'by the machine. It has at its rear end on each sidean arm 28, which extends upwardly under a strap or bracket 28 on theframe 10, to which it is pivoted at 28. This connection enables it toreadily clear obstacles when it is being pushed over the runner-frameand is held against lateral displacement by standards 30, which extendupwardly from the frame on each side thereof.

At 31 are indicated arms, which are pivoted in front to the sides of thescraper. arms extend along both sides of the scraper and have their rearends connected by a rod 32, which extends loosely through said arms. Theframe 10 in front thereon carries a rockshaft 33, which is cranked at33. A connecting-rod 34 extends from each crank to the rod 32. Thisconnection is for the purpose of shoving the scraper over the front endof its supporting-frame into operative position and pulling it back whenfull. The rock-shaft has a hand-lever 35 for operating it, saidhand-lever being provided with the usual spring-latch engaging a rack35. When the hand-lever is thrown rearwardly, the rock-shaft connectingrods and arms 31 will push the scraper over the front end of itssupporting-frame, while a reverse movement will pull it back thereon.

Each corner of the frame 10 has standards 36, which are connected at thetop by crossbeams 36 and side beams 36 A shaft 37 extends across theside beams, being journaled in bearings 37 thereon. On this shaft, neareach end thereof, are winding-drums 38. The shaft also has sprockets 39,connected by chains 39 with the sprockets 21 on the counter-shaft 21.The shaft 37 also has a band-brake 10 of any suitable or preferredconstruction. Cables 41 are wound on the drum and extend to the frontend of the machine over rollers 42 on the cross-beam 36 and downwardlyto the scraper, to which they are secured at the rear end thereof.

The operation of the machine is as follows:

When it is proceeding to its place of operation, the scraper will becarried on its supporting-frame, as shown in Fig. 1. To operate thescraper, the lever 35 is swung rearwardly, which rocks the shaft 33, andby reason of the connections already described the scraper will beshoved forwardly over the The scraper sits on These be swung forwardlyto pull the scraper back on its supporting-frame, the cable in themeantime being slacked sufliciently to permit this movement. Thehand-lever is then locked to the rack 35*, which will securely hold thescraper on its supporting-frame, after which the machine will bepropelled to the dumpingplace. To dump the scraper, the brake 4:0 isthrown off and the clutch 23 is thrown into operative position. Thecounter-shaft will then receive motion from the driving-shaft throughthe gearing already described, which will be transmitted to thedrum-shaft through the sprockets 21, chains 39*, and sprockets 39, whichwill wind the cables on the drums and elevate the scraper, as shown inFig. 6. After it is emptied it is lowered and replaced on its supportingframe by throwing the clutch out, its descent being controlled by thebrake 41, after which the machine is again ready for operation.

Having thus described my invention, what I claim as new, and desire tobe secured by Letters Patent, is

1. A machine of the character described, comprising a traction-engine, aframe on runners coupled to the front end thereof, a scraper on theframe, and means for elevating and dumping the scraper.

2. A machine of the character described, comprising a traction-engine, aframe hinged to the front end thereof and mounted on runners, a scrapercarried by the frame, means for tilting the scraper over the front endof the frame into operative position, and means for elevating anddumping it.

3. A machine of the character described, comprising a traction-engine, aframe hinged to the front end thereof and mounted on runners, a scrapercarried by the frame, a rockshaft and a connection between the same andthe scraper for tilting it over the front end of the frame intooperative position, and means for elevating and dumping it.

4. A machine of the character described, comprising a traction-enginecarrying a hoisting apparatus, a frame hinged in front of thetraction-engine and mounted on runners, a scraper on the frame, aconnection between the scraper and hoisting apparatus for elevating anddumping the former, a rock-shaft, and a connection between therock-shaft and the scraper for tilting it over the front end of theframe into operative position.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

ISRAEL WONNAOOTT.

Witnesses:

OSCAR F. CARR, RAYMOND COREY

